- Home
- Homeowners
Homeowners
Safe for your family, GreenStuf keeps your home warmer, healthier, and drier all year round
KEEPING YOUR HOME HEALTHY
A well insulated home provides year-round comfort; it is cooler in the summer and warmer in the winter.
Around 35% of the energy used in the average New Zealand household goes towards heating. Without adequate insulation your energy spend is wasted, as heat escapes through the walls, ceilings, and floors.

Tips for healthy homes
Creating a healthy home prepared for winter. Whether you’re building new or retrofitting, making your home energy-efficient for the winter is important. Having quality insulation is a great start but are many things that work alongside insulation.
Ceiling insulation
Grab a step ladder andhave a look around your roof/attic space. Is there insulation? If not, you need to get some! If yes, let’s check to make sure it is up to standard.
Getting the best out of your ceiling insulation can be quite the science – especially if you have downlights – so please contact us if you are unsure.
You will need an extra layer of insulation if:
- Insulation is 12 cm thick or less.
- Insulation doesn’t cover the whole ceiling.
- Insulation has gaps in it, or places where it is squashed or tucked in.
- Insulation is old.
You will need to remove the old insulation and replace it if:
- Insulation is wet or damp in areas.
- Insulation is damaged by rodents or birds.
Underfloor insulation
If it’s possible to access your underfloor, check for insulation. Insulation will either be in-between, or stapled to, the underside of the joists.
If not, you need to get some! If yes, let’s check to make sure it’s up to standard.
You will need an extra layer of insulation if:
- Insulation is loose or doesn't sit hard against the underside of the floorboards.
- Insulation doesn’t extend under the entire floor space.
- Insulation has gaps in it or has bits missing.
- Insulation is foil.
- Insulation has been damaged.
Browse Our Products
Don’t know where to pick up GreenStuf® solutions from? Click below to find your local GreenStuf supplier, installer, or merchant.
Stay up to date with industry topics and trends through our range of projects, news articles, technical documents and videos.
Want to learn more about how GreenStuf® can help you? Click below to access our range of services including H1 calculations, spec writing, site sign off and CPDs.
Why choose GreenStuf®?
GreenStuf® has been making warmer, drier, and healthier spaces across New Zealand for decades.
NZ MADE
SAFE TO TOUCH
Made from 100% polyester, handling GreenStuf® doesn’t require any protective clothing when handling.
CHEMICAL FREE
No formaldehyde-based binders or fibres, that can be breathed into your lungs.
FIRE SAFE
Independently tested and assessed for New Zealand Building Code (NZBC).
QUALITY
GreenStuf® is produced under tightly controlled manufacturing processes to ensure our solutions are consistently of the highest quality.
Performance
GreenStuf® is not affected by moisture, is naturally resistant to insect and vermin attacks, and meets NZBC requirements.
NO SLUMP
GeenStuf® won’t slump or reduce its performance over time.
50 Years
Backed by a 50-year product durability warranty.
Recycled
Minimum of 50% previously recycled polyester fibre (from PET plastic), reusable and recyclable at end of life.
Breathe Easy
Testimonials from homeowners
Building in Wellington where its naturally quite windy, we required something heavy duty which can warm our house efficiently. GreenStuf was our first choice.
Cain Jones – Homeowner
We built with GreenStuf in our walls for our family. Living in a breathable space seems to get swept under the rug at every turn, to us it was essential to raise our kids in a better-breathable environment.
Gabriella Johnston – Homeowner
Our house stays so lovely and warm throughout winter and our power bill stays the same.
It’s the best investment we made on our home.
Shay Bruce – Homeowner
Where to next?
To learn more about who we are and what we do at GreenStuf®, check out some of our other helpful pages.
Subscribe to our newsletter
Sign up to our newsletter to receive updates on new releases and exclusive information from GreenStuf®.